Nope I don't think its just bad luck . Have done probably over 1000 matches & have seen every single map (& they all show pretty much evenly) "Derail" however has never showed up not even once .

Its no biggie to me , I just wonder if its been removed from play or something ... I searched through Infinty Ward forums , gone through everything here & a few other MW2 sites but have never seen any info on it being gone for some reason .